/**
* Adds the listener to the collection of listeners who will be notified when the user changes the
* receiver's selection, by sending it one of the messages defined in the <code>SelectionListener
* </code> interface.
*
* <p>When <code>widgetSelected</code> is called, the item field of the event object is valid. If
* the receiver has <code>SWT.CHECK</code> style set and the check selection changes, the event
* object detail field contains the value <code>SWT.CHECK</code>. <code>widgetDefaultSelected
* </code> is typically called when an item is double-clicked.
*
* @param listener the listener which should be notified when the user changes the receiver's
* selection
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*
* @see SelectionListener
* @see SelectionEvent
* @see #removeSelectionListener(SelectionListener)
*/
public void addSelectionListener(SelectionListener listener) {
checkWidget();
if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
TypedListener typedListener = new TypedListener(listener);
addListener(SWT.Selection, typedListener);
addListener(SWT.DefaultSelection, typedListener);
}
/**
* Positions the TableCursor over the cell at the given row and column in the parent table.
*
* @param row the TableItem of the row for the cell to select
* @param column the index of column for the cell to select
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setSelection(TableItem row, int column) {
checkWidget();
int columnCount = table.getColumnCount();
int maxColumnIndex = columnCount == 0 ? 0 : columnCount - 1;
if (row == null || row.isDisposed() || column < 0 || column > maxColumnIndex)
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
setRowColumn(table.indexOf(row), column, false);
}
/**
* Positions the TableCursor over the cell at the given row and column in the parent table.
*
* @param row the index of the row for the cell to select
* @param column the index of column for the cell to select
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setSelection(int row, int column) {
checkWidget();
int columnCount = table.getColumnCount();
int maxColumnIndex = columnCount == 0 ? 0 : columnCount - 1;
if (row < 0 || row >= table.getItemCount() || column < 0 || column > maxColumnIndex)
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
setRowColumn(row, column, false);
}
/**
* Removes the listener from the collection of listeners who will be notified when the user
* changes the receiver's selection.
*
* @param listener the listener which should no longer be notified
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*
* @see SelectionListener
* @see #addSelectionListener(SelectionListener)
* @since 3.0
*/
public void removeSelectionListener(SelectionListener listener) {
checkWidget();
if (listener == null) {
SWT.error(SWT.ERROR_NULL_ARGUMENT);
}
removeListener(SWT.Selection, listener);
removeListener(SWT.DefaultSelection, listener);
}
/**
* Set the horizontal alignment of the CLabel. Use the values LEFT, CENTER and RIGHT to align
* image and text within the available space.
*
* @param align the alignment style of LEFT, RIGHT or CENTER
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* <li>ERROR_INVALID_ARGUMENT - if the value of align is not one of SWT.LEFT, SWT.RIGHT or
* SWT.CENTER
* </ul>
*/
public void setAlignment(int align) {
checkWidget();
if (align != SWT.LEFT && align != SWT.RIGHT && align != SWT.CENTER) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
if (this.align != align) {
this.align = align;
redraw();
}
}
/**
* Sets the selection state of the receiver.
*
* <p>When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, it is selected when
* it is checked.
*
* @param selected the new selection state
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setSelection(boolean selected) {
checkWidget();
if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return;
if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) return;
long /*int*/ hMenu = parent.handle;
if (OS.IsWinCE) {
int index = parent.indexOf(this);
if (index == -1) return;
int uCheck = OS.MF_BYPOSITION | (selected ? OS.MF_CHECKED : OS.MF_UNCHECKED);
OS.CheckMenuItem(hMenu, index, uCheck);
} else {
MENUITEMINFO info = new MENUITEMINFO();
info.cbSize = MENUITEMINFO.sizeof;
info.fMask = OS.MIIM_STATE;
boolean success = OS.GetMenuItemInfo(hMenu, id, false, info);
if (!success) error(SWT.ERROR_CANNOT_SET_SELECTION);
info.fState &= ~OS.MFS_CHECKED;
if (selected) info.fState |= OS.MFS_CHECKED;
success = OS.SetMenuItemInfo(hMenu, id, false, info);
if (!success) {
/*
* Bug in Windows. For some reason SetMenuItemInfo(),
* returns a fail code when setting the enabled or
* selected state of a default item, but sets the
* state anyway. The fix is to ignore the error.
*
* NOTE: This only happens on Vista.
*/
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION(6, 0)) {
success = id == OS.GetMenuDefaultItem(hMenu, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED);
}
if (!success) {
int error = OS.GetLastError();
SWT.error(
SWT.ERROR_CANNOT_SET_SELECTION,
null,
" [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
}
}
}
parent.redraw();
}
int XmNexposureCallback(int w, int client_data, int call_data) {
if ((style & SWT.SEPARATOR) != 0) return 0;
int xDisplay = OS.XtDisplay(handle);
if (xDisplay == 0) return 0;
int xWindow = OS.XtWindow(handle);
if (xWindow == 0) return 0;
int[] argList = {
OS.XmNcolormap, 0,
OS.XmNwidth, 0,
OS.XmNheight, 0,
};
OS.XtGetValues(handle, argList, argList.length / 2);
int width = argList[3], height = argList[5];
Image currentImage = image;
boolean enabled = getEnabled();
if ((parent.style & SWT.FLAT) != 0) {
boolean hasCursor = hasCursor();
/* Set the shadow thickness */
int thickness = 0;
if (set || (hasCursor && enabled)) {
thickness = Math.min(2, display.buttonShadowThickness);
}
argList = new int[] {OS.XmNshadowThickness, thickness};
OS.XtSetValues(handle, argList, argList.length / 2);
/* Determine if hot image should be used */
if (enabled && hasCursor && hotImage != null) {
currentImage = hotImage;
}
}
GCData data = new GCData();
data.device = display;
data.display = xDisplay;
data.drawable = xWindow;
data.font = parent.font;
data.colormap = argList[1];
int xGC = OS.XCreateGC(xDisplay, xWindow, 0, null);
if (xGC == 0) SWT.error(SWT.ERROR_NO_HANDLES);
GC gc = GC.motif_new(xGC, data);
XmAnyCallbackStruct cb = new XmAnyCallbackStruct();
OS.memmove(cb, call_data, XmAnyCallbackStruct.sizeof);
if (cb.event != 0) {
XExposeEvent xEvent = new XExposeEvent();
OS.memmove(xEvent, cb.event, XExposeEvent.sizeof);
Rectangle rect = new Rectangle(xEvent.x, xEvent.y, xEvent.width, xEvent.height);
gc.setClipping(rect);
}
if (!enabled) {
currentImage = disabledImage;
if (currentImage == null && image != null) {
currentImage = new Image(display, image, SWT.IMAGE_DISABLE);
}
Color disabledColor = display.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW);
gc.setForeground(disabledColor);
} else {
gc.setForeground(parent.getForeground());
}
gc.setBackground(parent.getBackground());
int textX = 0, textY = 0, textWidth = 0, textHeight = 0;
if (text.length() != 0) {
int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB | SWT.DRAW_MNEMONIC;
Point textExtent = gc.textExtent(text, flags);
textWidth = textExtent.x;
textHeight = textExtent.y;
}
int imageX = 0, imageY = 0, imageWidth = 0, imageHeight = 0;
if (currentImage != null) {
Rectangle imageBounds = currentImage.getBounds();
imageWidth = imageBounds.width;
imageHeight = imageBounds.height;
}
int spacing = 0;
if (textWidth != 0 && imageWidth != 0) spacing = 2;
if ((parent.style & SWT.RIGHT) != 0) {
imageX = (width - imageWidth - textWidth - spacing) / 2;
imageY = (height - imageHeight) / 2;
textX = spacing + imageX + imageWidth;
textY = (height - textHeight) / 2;
} else {
imageX = (width - imageWidth) / 2;
imageY = (height - imageHeight - textHeight - spacing) / 2;
textX = (width - textWidth) / 2;
textY = spacing + imageY + imageHeight;
}
if ((style & SWT.DROP_DOWN) != 0) {
textX -= 6;
imageX -= 6;
}
if (textWidth > 0) {
int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB | SWT.DRAW_MNEMONIC | SWT.DRAW_TRANSPARENT;
gc.drawText(text, textX, textY, flags);
}
if (imageWidth > 0) gc.drawImage(currentImage, imageX, imageY);
if ((style & SWT.DROP_DOWN) != 0) {
int startX = width - 12, startY = (height - 2) / 2;
int[] arrow = {startX, startY, startX + 3, startY + 3, startX + 6, startY};
gc.setBackground(parent.getForeground());
gc.fillPolygon(arrow);
gc.drawPolygon(arrow);
}
gc.dispose();
OS.XFreeGC(xDisplay, xGC);
if (!enabled && disabledImage == null) {
if (currentImage != null) currentImage.dispose();
}
return 0;
}
public void createPartControl(org.eclipse.swt.widgets.Composite frame) {
final org.eclipse.swt.examples.hoverhelp.HoverHelp.ToolTipHandler tooltip =
new org.eclipse.swt.examples.hoverhelp.HoverHelp.ToolTipHandler(frame.getShell());
org.eclipse.swt.layout.GridLayout layout = new org.eclipse.swt.layout.GridLayout();
layout.numColumns = 3;
frame.setLayout(layout);
java.lang.String platform = SWT.getPlatform();
java.lang.String helpKey = "F1";
if (platform.equals("gtk")) {
helpKey = "Ctrl+F1";
}
if (platform.equals("carbon") || platform.equals("cocoa")) {
helpKey = "Help";
}
org.eclipse.swt.widgets.ToolBar bar = new org.eclipse.swt.widgets.ToolBar(frame, SWT.BORDER);
for (int i = 0; i < 5; i++) {
org.eclipse.swt.widgets.ToolItem item = new org.eclipse.swt.widgets.ToolItem(bar, SWT.PUSH);
item.setText(
getResourceString("ToolItem.text", new java.lang.Object[] {new java.lang.Integer(i)}));
item.setData(
"TIP_TEXT",
getResourceString("ToolItem.tooltip", new java.lang.Object[] {item.getText(), helpKey}));
item.setData(
"TIP_HELPTEXTHANDLER",
new org.eclipse.swt.examples.hoverhelp.HoverHelp.ToolTipHelpTextHandler() {
public java.lang.String getHelpText(org.eclipse.swt.widgets.Widget widget) {
org.eclipse.swt.widgets.Item item = (org.eclipse.swt.widgets.Item) widget;
return getResourceString("ToolItem.help", new java.lang.Object[] {item.getText()});
}
});
}
org.eclipse.swt.layout.GridData gridData = new org.eclipse.swt.layout.GridData();
gridData.horizontalSpan = 3;
bar.setLayoutData(gridData);
tooltip.activateHoverHelp(bar);
org.eclipse.swt.widgets.Table table = new org.eclipse.swt.widgets.Table(frame, SWT.BORDER);
for (int i = 0; i < 4; i++) {
org.eclipse.swt.widgets.TableItem item =
new org.eclipse.swt.widgets.TableItem(table, SWT.PUSH);
item.setText(getResourceString("Item", new java.lang.Object[] {new java.lang.Integer(i)}));
item.setData("TIP_IMAGE", images[hhiInformation]);
item.setText(
getResourceString("TableItem.text", new java.lang.Object[] {new java.lang.Integer(i)}));
item.setData(
"TIP_TEXT",
getResourceString("TableItem.tooltip", new java.lang.Object[] {item.getText(), helpKey}));
item.setData(
"TIP_HELPTEXTHANDLER",
new org.eclipse.swt.examples.hoverhelp.HoverHelp.ToolTipHelpTextHandler() {
public java.lang.String getHelpText(org.eclipse.swt.widgets.Widget widget) {
org.eclipse.swt.widgets.Item item = (org.eclipse.swt.widgets.Item) widget;
return getResourceString("TableItem.help", new java.lang.Object[] {item.getText()});
}
});
}
table.setLayoutData(new org.eclipse.swt.layout.GridData(GridData.VERTICAL_ALIGN_FILL));
tooltip.activateHoverHelp(table);
org.eclipse.swt.widgets.Tree tree = new org.eclipse.swt.widgets.Tree(frame, SWT.BORDER);
for (int i = 0; i < 4; i++) {
org.eclipse.swt.widgets.TreeItem item = new org.eclipse.swt.widgets.TreeItem(tree, SWT.PUSH);
item.setText(getResourceString("Item", new java.lang.Object[] {new java.lang.Integer(i)}));
item.setData("TIP_IMAGE", images[hhiWarning]);
item.setText(
getResourceString("TreeItem.text", new java.lang.Object[] {new java.lang.Integer(i)}));
item.setData(
"TIP_TEXT",
getResourceString("TreeItem.tooltip", new java.lang.Object[] {item.getText(), helpKey}));
item.setData(
"TIP_HELPTEXTHANDLER",
new org.eclipse.swt.examples.hoverhelp.HoverHelp.ToolTipHelpTextHandler() {
public java.lang.String getHelpText(org.eclipse.swt.widgets.Widget widget) {
org.eclipse.swt.widgets.Item item = (org.eclipse.swt.widgets.Item) widget;
return getResourceString("TreeItem.help", new java.lang.Object[] {item.getText()});
}
});
}
tree.setLayoutData(new org.eclipse.swt.layout.GridData(GridData.VERTICAL_ALIGN_FILL));
tooltip.activateHoverHelp(tree);
org.eclipse.swt.widgets.Button button = new org.eclipse.swt.widgets.Button(frame, SWT.PUSH);
button.setText(getResourceString("Hello.text"));
button.setData("TIP_TEXT", getResourceString("Hello.tooltip"));
tooltip.activateHoverHelp(button);
}
static MenuItem checkNull(MenuItem item) {
if (item == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
return item;
}
static Menu checkNull(Menu menu) {
if (menu == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
return menu;
}
static Control checkNull(Control control) {
if (control == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
return control;
}
void paint(Event event) {
if (row == null) return;
int columnIndex = column == null ? 0 : table.indexOf(column);
GC gc = event.gc;
gc.setBackground(getBackground());
gc.setForeground(getForeground());
gc.fillRectangle(event.x, event.y, event.width, event.height);
int x = 0;
Point size = getSize();
Image image = row.getImage(columnIndex);
if (image != null) {
Rectangle imageSize = image.getBounds();
int imageY = (size.y - imageSize.height) / 2;
gc.drawImage(image, x, imageY);
x += imageSize.width;
}
String text = row.getText(columnIndex);
if (text.length() > 0) {
Rectangle bounds = row.getBounds(columnIndex);
Point extent = gc.stringExtent(text);
// Temporary code - need a better way to determine table trim
String platform = SWT.getPlatform();
if ("win32".equals(platform)) { // $NON-NLS-1$
if (table.getColumnCount() == 0 || columnIndex == 0) {
x += 2;
} else {
int alignmnent = column.getAlignment();
switch (alignmnent) {
case SWT.LEFT:
x += 6;
break;
case SWT.RIGHT:
x = bounds.width - extent.x - 6;
break;
case SWT.CENTER:
x += (bounds.width - x - extent.x) / 2;
break;
}
}
} else {
if (table.getColumnCount() == 0) {
x += 5;
} else {
int alignmnent = column.getAlignment();
switch (alignmnent) {
case SWT.LEFT:
x += 5;
break;
case SWT.RIGHT:
x = bounds.width - extent.x - 2;
break;
case SWT.CENTER:
x += (bounds.width - x - extent.x) / 2 + 2;
break;
}
}
}
int textY = (size.y - extent.y) / 2;
gc.drawString(text, x, textY);
}
if (isFocusControl()) {
Display display = getDisplay();
gc.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
gc.drawFocus(0, 0, size.x, size.y);
}
}
void setMenu(Menu menu, boolean dispose) {
/* Assign the new menu */
Menu oldMenu = this.menu;
if (oldMenu == menu) return;
if (oldMenu != null) oldMenu.cascade = null;
this.menu = menu;
/* Assign the new menu in the OS */
if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
if (OS.IsPPC) {
long /*int*/ hwndCB = parent.hwndCB;
long /*int*/ hMenu = menu == null ? 0 : menu.handle;
OS.SendMessage(hwndCB, OS.SHCMBM_SETSUBMENU, id, hMenu);
}
if (OS.IsSP) error(SWT.ERROR_CANNOT_SET_MENU);
} else {
long /*int*/ hMenu = parent.handle;
MENUITEMINFO info = new MENUITEMINFO();
info.cbSize = MENUITEMINFO.sizeof;
info.fMask = OS.MIIM_DATA;
int index = 0;
while (OS.GetMenuItemInfo(hMenu, index, true, info)) {
if (info.dwItemData == id) break;
index++;
}
if (info.dwItemData != id) return;
int cch = 128;
long /*int*/ hHeap = OS.GetProcessHeap();
int byteCount = cch * TCHAR.sizeof;
long /*int*/ pszText = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
info.fMask = OS.MIIM_STATE | OS.MIIM_ID | OS.MIIM_DATA;
/*
* Bug in Windows. When GetMenuItemInfo() is used to get the text,
* for an item that has a bitmap set using MIIM_BITMAP, the text is
* not returned. This means that when SetMenuItemInfo() is used to
* set the submenu and the current menu state, the text is lost.
* The fix is use MIIM_BITMAP and MIIM_STRING.
*/
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION(4, 10)) {
info.fMask |= OS.MIIM_BITMAP | OS.MIIM_STRING;
} else {
info.fMask |= OS.MIIM_TYPE;
}
info.dwTypeData = pszText;
info.cch = cch;
boolean success = OS.GetMenuItemInfo(hMenu, index, true, info);
if (menu != null) {
menu.cascade = this;
info.fMask |= OS.MIIM_SUBMENU;
info.hSubMenu = menu.handle;
}
if (OS.IsWinCE) {
OS.RemoveMenu(hMenu, index, OS.MF_BYPOSITION);
/*
* On WinCE, InsertMenuItem() is not available. The fix is to
* use SetMenuItemInfo() but this call does not set the menu item
* state and submenu. The fix is to use InsertMenu() to insert
* the item, SetMenuItemInfo() to set the string and EnableMenuItem()
* and CheckMenuItem() to set the state.
*/
long /*int*/ uIDNewItem = id;
int uFlags = OS.MF_BYPOSITION;
if (menu != null) {
uFlags |= OS.MF_POPUP;
uIDNewItem = menu.handle;
}
TCHAR lpNewItem = new TCHAR(0, " ", true);
success = OS.InsertMenu(hMenu, index, uFlags, uIDNewItem, lpNewItem);
if (success) {
info.fMask = OS.MIIM_DATA | OS.MIIM_TYPE;
success = OS.SetMenuItemInfo(hMenu, index, true, info);
if ((info.fState & (OS.MFS_DISABLED | OS.MFS_GRAYED)) != 0) {
OS.EnableMenuItem(hMenu, index, OS.MF_BYPOSITION | OS.MF_GRAYED);
}
if ((info.fState & OS.MFS_CHECKED) != 0) {
OS.CheckMenuItem(hMenu, index, OS.MF_BYPOSITION | OS.MF_CHECKED);
}
}
} else {
if (dispose || oldMenu == null) {
success = OS.SetMenuItemInfo(hMenu, index, true, info);
} else {
/*
* Feature in Windows. When SetMenuItemInfo () is used to
* set a submenu and the menu item already has a submenu,
* Windows destroys the previous menu. This is undocumented
* and unexpected but not necessarily wrong. The fix is to
* remove the item with RemoveMenu () which does not destroy
* the submenu and then insert the item with InsertMenuItem ().
*/
OS.RemoveMenu(hMenu, index, OS.MF_BYPOSITION);
success = OS.InsertMenuItem(hMenu, index, true, info);
}
}
if (pszText != 0) OS.HeapFree(hHeap, 0, pszText);
if (!success) {
int error = OS.GetLastError();
SWT.error(
SWT.ERROR_CANNOT_SET_MENU,
null,
" [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
}
}
parent.destroyAccelerators();
}
/**
* Enables the receiver if the argument is <code>true</code>, and disables it otherwise. A
* disabled menu item is typically not selectable from the user interface and draws with an
* inactive or "grayed" look.
*
* @param enabled the new enabled state
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setEnabled(boolean enabled) {
checkWidget();
if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
long /*int*/ hwndCB = parent.hwndCB;
TBBUTTONINFO info = new TBBUTTONINFO();
info.cbSize = TBBUTTONINFO.sizeof;
info.dwMask = OS.TBIF_STATE;
OS.SendMessage(hwndCB, OS.TB_GETBUTTONINFO, id, info);
info.fsState &= ~OS.TBSTATE_ENABLED;
if (enabled) info.fsState |= OS.TBSTATE_ENABLED;
OS.SendMessage(hwndCB, OS.TB_SETBUTTONINFO, id, info);
} else {
/*
* Feature in Windows. For some reason, when the menu item
* is a separator, GetMenuItemInfo() always indicates that
* the item is not enabled. The fix is to track the enabled
* state for separators.
*/
if ((style & SWT.SEPARATOR) != 0) {
if (enabled) {
state &= ~DISABLED;
} else {
state |= DISABLED;
}
}
long /*int*/ hMenu = parent.handle;
if (OS.IsWinCE) {
int index = parent.indexOf(this);
if (index == -1) return;
int uEnable = OS.MF_BYPOSITION | (enabled ? OS.MF_ENABLED : OS.MF_GRAYED);
OS.EnableMenuItem(hMenu, index, uEnable);
} else {
MENUITEMINFO info = new MENUITEMINFO();
info.cbSize = MENUITEMINFO.sizeof;
info.fMask = OS.MIIM_STATE;
boolean success = OS.GetMenuItemInfo(hMenu, id, false, info);
if (!success) {
int error = OS.GetLastError();
SWT.error(
SWT.ERROR_CANNOT_SET_ENABLED,
null,
" [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
}
int bits = OS.MFS_DISABLED | OS.MFS_GRAYED;
if (enabled) {
if ((info.fState & bits) == 0) return;
info.fState &= ~bits;
} else {
if ((info.fState & bits) == bits) return;
info.fState |= bits;
}
success = OS.SetMenuItemInfo(hMenu, id, false, info);
if (!success) {
/*
* Bug in Windows. For some reason SetMenuItemInfo(),
* returns a fail code when setting the enabled or
* selected state of a default item, but sets the
* state anyway. The fix is to ignore the error.
*
* NOTE: This only happens on Vista.
*/
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION(6, 0)) {
success = id == OS.GetMenuDefaultItem(hMenu, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED);
}
if (!success) {
int error = OS.GetLastError();
SWT.error(
SWT.ERROR_CANNOT_SET_ENABLED,
null,
" [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
}
}
}
}
parent.destroyAccelerators();
parent.redraw();
}
/**
* Sets the receiver's text. The string may include the mnemonic character and accelerator text.
*
* <p>Mnemonics are indicated by an '&' that causes the next character to be the mnemonic.
* When the user presses a key sequence that matches the mnemonic, a selection event occurs. On
* most platforms, the mnemonic appears underlined but may be emphasised in a platform specific
* manner. The mnemonic indicator character '&' can be escaped by doubling it in the string,
* causing a single '&' to be displayed.
*
* <p>Accelerator text is indicated by the '\t' character. On platforms that support accelerator
* text, the text that follows the '\t' character is displayed to the user, typically indicating
* the key stroke that will cause the item to become selected. On most platforms, the accelerator
* text appears right aligned in the menu. Setting the accelerator text does not install the
* accelerator key sequence. The accelerator key sequence is installed using #setAccelerator.
*
* @param string the new text
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the text is null
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*
* @see #setAccelerator
*/
public void setText(String string) {
checkWidget();
if (string == null) error(SWT.ERROR_NULL_ARGUMENT);
if ((style & SWT.SEPARATOR) != 0) return;
if (text.equals(string)) return;
super.setText(string);
long /*int*/ hHeap = OS.GetProcessHeap();
long /*int*/ pszText = 0;
boolean success = false;
if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
/*
* Bug in WinCE PPC. Tool items on the menubar don't resize
* correctly when the character '&' is used (even when it
* is a sequence '&&'). The fix is to remove all '&' from
* the string.
*/
if (string.indexOf('&') != -1) {
int length = string.length();
char[] text = new char[length];
string.getChars(0, length, text, 0);
int i = 0, j = 0;
for (i = 0; i < length; i++) {
if (text[i] != '&') text[j++] = text[i];
}
if (j < i) string = new String(text, 0, j);
}
/* Use the character encoding for the default locale */
TCHAR buffer = new TCHAR(0, string, true);
int byteCount = buffer.length() * TCHAR.sizeof;
pszText = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
OS.MoveMemory(pszText, buffer, byteCount);
long /*int*/ hwndCB = parent.hwndCB;
TBBUTTONINFO info2 = new TBBUTTONINFO();
info2.cbSize = TBBUTTONINFO.sizeof;
info2.dwMask = OS.TBIF_TEXT;
info2.pszText = pszText;
success = OS.SendMessage(hwndCB, OS.TB_SETBUTTONINFO, id, info2) != 0;
} else {
MENUITEMINFO info = new MENUITEMINFO();
info.cbSize = MENUITEMINFO.sizeof;
long /*int*/ hMenu = parent.handle;
/* Use the character encoding for the default locale */
TCHAR buffer = new TCHAR(0, string, true);
int byteCount = buffer.length() * TCHAR.sizeof;
pszText = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
OS.MoveMemory(pszText, buffer, byteCount);
/*
* Bug in Windows 2000. For some reason, when MIIM_TYPE is set
* on a menu item that also has MIIM_BITMAP, the MIIM_TYPE clears
* the MIIM_BITMAP style. The fix is to use MIIM_STRING.
*/
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION(4, 10)) {
info.fMask = OS.MIIM_STRING;
} else {
info.fMask = OS.MIIM_TYPE;
info.fType = widgetStyle();
}
info.dwTypeData = pszText;
success = OS.SetMenuItemInfo(hMenu, id, false, info);
}
if (pszText != 0) OS.HeapFree(hHeap, 0, pszText);
if (!success) {
int error = OS.GetLastError();
SWT.error(
SWT.ERROR_CANNOT_SET_TEXT,
null,
" [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
}
parent.redraw();
}
/**
* Specify a gradient of colours to be drawn in the background of the CLabel.
*
* <p>For example, to draw a gradient that varies from dark blue to white in the vertical,
* direction use the following call to setBackground:
*
* <pre>
* clabel.setBackground(new Color[]{display.getSystemColor(SWT.COLOR_DARK_BLUE),
* display.getSystemColor(SWT.COLOR_WHITE)},
* new int[] {100}, true);
* </pre>
*
* @param colors an array of Color that specifies the colors to appear in the gradient in order of
* appearance from left/top to right/bottom; The value <code>null</code> clears the background
* gradient; the value <code>null</code> can be used inside the array of Color to specify the
* background color.
* @param percents an array of integers between 0 and 100 specifying the percent of the
* width/height of the widget at which the color should change; the size of the percents array
* must be one less than the size of the colors array.
* @param vertical indicate the direction of the gradient. True is vertical and false is
* horizontal.
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* <li>ERROR_INVALID_ARGUMENT - if the values of colors and percents are not consistent
* </ul>
*
* @since 3.0
*/
public void setBackground(Color[] colors, int[] percents, boolean vertical) {
checkWidget();
if (colors != null) {
if (percents == null || percents.length != colors.length - 1) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
if (getDisplay().getDepth() < 15) {
// Don't use gradients on low color displays
colors = new Color[] {colors[colors.length - 1]};
percents = new int[] {};
}
for (int i = 0; i < percents.length; i++) {
if (percents[i] < 0 || percents[i] > 100) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
if (i > 0 && percents[i] < percents[i - 1]) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
}
}
// Are these settings the same as before?
final Color background = getBackground();
if (backgroundImage == null) {
if ((gradientColors != null)
&& (colors != null)
&& (gradientColors.length == colors.length)) {
boolean same = false;
for (int i = 0; i < gradientColors.length; i++) {
same =
(gradientColors[i] == colors[i])
|| ((gradientColors[i] == null) && (colors[i] == background))
|| ((gradientColors[i] == background) && (colors[i] == null));
if (!same) break;
}
if (same) {
for (int i = 0; i < gradientPercents.length; i++) {
same = gradientPercents[i] == percents[i];
if (!same) break;
}
}
if (same && this.gradientVertical == vertical) return;
}
} else {
backgroundImage = null;
}
// Store the new settings
if (colors == null) {
gradientColors = null;
gradientPercents = null;
gradientVertical = false;
} else {
gradientColors = new Color[colors.length];
for (int i = 0; i < colors.length; ++i)
gradientColors[i] = (colors[i] != null) ? colors[i] : background;
gradientPercents = new int[percents.length];
for (int i = 0; i < percents.length; ++i) gradientPercents[i] = percents[i];
gradientVertical = vertical;
}
// Refresh with the new settings
redraw();
}
